Studies on the steam CO2 reforming of methane over ordered mesoporous nickel-magnesium-alumina catalysts
- Authors
- Kim, Hyun-Jin; Yang, Eun-Hyeok; Noh, Young Su; Hong, Gi Hoon; Park, Ji In; Shin, Seol A.; Lee, Kwan-Young; Moon, Dong Ju
- Issue Date
- 2월-2018
- Publisher
- SPRINGER
- Keywords
- Hydrogen; Steam CO2 reforming of methane; Synthesis gas; Ni support catalysts; Mesoporous material; Gas to liquid
- Citation
- RESEARCH ON CHEMICAL INTERMEDIATES, v.44, no.2, pp.1131 - 1148
- Indexed
- SCIE
SCOPUS
- Journal Title
- RESEARCH ON CHEMICAL INTERMEDIATES
- Volume
- 44
- Number
- 2
- Start Page
- 1131
- End Page
- 1148
- URI
- https://scholar.korea.ac.kr/handle/2021.sw.korea/77424
- DOI
- 10.1007/s11164-017-3156-4
- ISSN
- 0922-6168
- Abstract
- Ordered mesoporous materials have received much attention because of their high surface area and ordered pore structure. The Mg-promoted ordered mesoporous nickel-alumina catalysts (M-Mg (x) NA), which were prepared using the evaporation induced self-assembly method, were investigated in the Steam CO2 Reforming (SCR) of methane. The fresh and spent catalysts were characterized by various analytical techniques such as N-2 physisorption, small-angle X-ray scattering, X-ray diffraction, temperature-programmed reduction, thermogravimetric analysis, transmission electron microscopy and CO2-temperature programmed desorption analysis. We have found that the M-Mg (x) NA catalyst has a larger surface area and a narrower pore size distribution than the Ni/Al2O3 catalyst (NA); furthermore, the M-Mg (x) NA catalyst exhibits high catalytic stability under the tested conditions of 600 A degrees C, 1 bar and feed molar ratio of CH4:CO2:H2O = 1:1:1. We consider that the ordered mesoporosity prevents the nickel particles from sintering because of the confinement effect and decreases the particle size in the SCR reaction. Thus, the Mg-promoted ordered mesoporous nickel-alumina catalyst shows enhanced resistance to carbon formation during the steam CO2 reforming of methane.
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